Results 41 to 50 of about 135,073 (216)

Origins of Juvenile Chum Salmon caught in the Southwestern Okhotsk Sea during the Fall of 2000 [PDF]

, 2006
2000年10月にオホーツク海南西部で調査船とりしまにより採集されたサケ幼魚206個体の地理的起源を遺伝的系群識別法と耳石標識により推定した。アロザイム多型による遺伝的系群識別で推定された系群組成は、日本系21％、アムール系22％、サハリン系25％、北ロシア系31％であった。7個体（3.4％）より耳石標識が検出されたが、これらはサハリンのBereznykovsky Hachery（n＝6）と西カムチャツカのOzerky Hachery（n＝1）より放流された幼魚であった。以上の結果は ...
Crane, Penelope A., 浦和, 茂彦, Urawa, Shigehiko, Saito, Toshihiko, 福若, 雅彰, ウラワ, シゲヒコ, 関, 二郎, Seeb, Lisa W., Akinichev, Elena, Morihiko, フクワカ, マサアキ, Seki, Jiro, サイトウ, トシヒコ, 斎藤, 寿彦, Fukuwaka, Masa-aki, 川名, 守彦, カワナ, モリヒコ, セキ, ジロウ   +17 more
core  

Comparison of the swimming ability and upstream-migration behavior between chum salmon and masu salmon [PDF]

, 2014
The spawning ground of chum salmon (Oncorhynchus keta) is usually located farther downriver than that of masu salmon (Oncorhynchus masou) in Hokkaido, Japan.
Sakashita, Taku, Miyoshi, Koji, Fujii, Makoto, Ueda, Hiroshi, Hayashida, Kazufumi, Nii, Hisaya, Nakao, Katsuya   +6 more
core   +1 more source

State of stocks of pacific salmons in the basin of Avacha Bay (southeastern Kamchatka) in 1985–2019

Известия ТИНРО, 2020
State of pacific salmon stocks is considered for the basins of the Avacha and Paratunka Rivers in 1985–2019. Significant decline of the stocks is noted that is associated with anthropogenic impact growth. Total number of producers for five salmon species
G. V. Zaporozhets, O. M. Zaporozhets
doaj   +1 more source

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

Fisheries Oceanography, EarlyView.
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina, Evgeny A. Pakhomov, Laurie Weitkamp, Brian P. V. Hunt   +3 more
wiley   +1 more source

Can reduced predation offset negative effects of sea louse parasites on chum salmon?

, 2014
The impact of parasites on hosts is invariably negative when considered in isolation, but may be complex and unexpected in nature. For example, if parasites make hosts less desirable to predators then gains from reduced predation may offset direct costs ...
Irvine, James R., Peacock, Stephanie J., Krkošek, Martin, Lewis, Mark A., Connors, Brendan M.   +4 more
core   +1 more source

Northern cod (Gadus morhua) movement: insights from acoustic telemetry and genomics

Journal of Fish Biology, EarlyView.
Abstract Knowledge of the timing and diversity of fish movements within a commercially exploited stock complex is required to ensure the sustainability of fisheries. Although migration can be driven by environmental factors, genomic mechanisms also play an important role in this complex life‐history trait. The northern cod (Gadus morhua) stock complex,
M. Lisette Delgado, Nicole Smith, Frederick Whoriskey, Steve Devitt, Emilie Novaczek, Corey J. Morris, Tony Kess, Ian Bradbury, Sara Iverson, Paul Bentzen, Daniel E. Ruzzante   +10 more
wiley   +1 more source

Biological characteristics for the spawners of chum salmon Oncorhynchus keta caught in the Indigirka River in 2023

Известия ТИНРО
The main biological parameters of chum salmon Oncorhynchus keta are presented for the spawners caught during the research expedition conducted to the lower reaches of Indigirka in August-September 2023.
A. I. Nikiforov, L. N. Karpova
doaj   +1 more source

Freshwater hydrology emerges as the strongest predictor of phenological variability in a Southeast Alaska steelhead trout (Oncorhynchus mykiss) population

Journal of Fish Biology, EarlyView.
Abstract Phenological variation, such as the migration trends of salmonids, may provide resilience in changing environmental scenarios, influencing individual survival and population productivity. Phenological shifts may be particularly consequential for anadromous species that rely on seasonal cues for migration between freshwater and marine habitats ...
Juliana C. Cornett, Charles D. Waters, Krista M. Nichols, Frank P. Thrower   +3 more
wiley   +1 more source

INTRA-SPECIES GROUPINGS OF CHUM SALMON ONCORHYNCHUS KETA (SALMONIDAE) OF THE AMUR RIVER AND THEIR DISTRIBUTION WITHIN THE BASIN

Известия ТИНРО, 2019
Chum salmon in the Amur River basin are represented by two races: summer and fall ones. For the summer race, one population with specific type of spawning grounds is known, but the fall race includes three populations with different types of spawning ...
S. F. Zolotukhin
doaj   +1 more source

Motives and barriers to blood donation among adults aged over 50 years: A qualitative analysis

Transfusion Medicine, EarlyView.
Abstract Background Ageing populations will increase demand for blood‐products and donors who supply them. While blood collection agencies (BCAs) typically target younger people to expand supply, recruiting donors aged 50+ is also a potential solution. However, few studies focus exclusively on this group.
Melissa K. Hyde, Barbara M. Masser, Rachel Thorpe, Aaron Akpu Philip, Amanda Salmon, Theresa L. Scott, Tanya E. Davison   +6 more
wiley   +1 more source